Results 121 to 130 of about 1,449,742 (274)

Thorium, Probleme der Inkorporationsueberwachung - Anwendung, Messung, Interpretation

, 1993
The natural element thorium is widespread due to its technical application. The extremely low annual limits of intakes (ALI-inhalation) laid down in the Radiation Protection Ordinance, the amended version of the related guidelines, and the draft basic ...
Bundesamt fuer Strahlenschutz, Neuherberg (Germany). Inst. fuer Strahlenhygiene, Dalheimer, A. (Bundesamt fuer Strahlenschutz, Neuherberg (Germany). Inst. fuer Strahlenhygiene), Henrichs, K. (Siemens A.G., Muenchen (Germany)) (eds.)   +2 more
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RECOVERY OF THORIUM AND RARE EARTHS BY THEIR PEROXIDES PRECIPITATION FROM A RESIDUE PRODUCED IN THE THORIUM PURIFICATION FACILITY

, 2008
Como conseqüência da operação de uma unidade de purificação de tório para a produção de nitrato de tório puro, o Instituto de Pesquisas Energéticas e Nucleares (IPEN) armazenou um resíduo rico em terras raras contendo tório e pequeno teor de urânio. Este
Antonio Alves de Freitas, Freitas, Antonio Alves de   +1 more
core   +1 more source

Strategy of Triple‐Gradient in Binary Pixels for Flexible Pressure Sensing with High Sensitivity and Wide‐Range Linearity

Advanced Science, EarlyView.
A flexible pressure sensor with triple‐gradient design of conductivity, modulus, and dimension in binary micro‐dome pixels is proposed. Based on precisely‐designed CNT/PDMS matrix, the device exhibits a linear sensitivity of 974.1 kPa−1 across range up to 1.8 MPa (R2 > 0.99), offering an effective strategy for potential applications in healthcare ...
Yifan Liu, Xiao Xu, Fengming Hu, Yuanzhe Liang, Zidong Yin, Biao Qi, Ruolin Liu, Ziyi Dai, Jianyi Luo, Bingpu Zhou   +9 more
wiley   +1 more source

Use of thorium as an alternative nuclear fuel. [PDF]

, 1982
The use of thorium as an alternative or supplementary nuclear fuel is examined and compared with uranium. A description of various reactor types and their suitability to thorium fuel and a description of various aspects of the fuel cycle from mining to ...
Wilson, DJ
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Stochastic Entanglement of Deterministic Origami Tentacles For Robust Robotic Grasping

Advanced Science, EarlyView.
This study introduces an origami tentacle gripper to robustly grasp objects‐in air, underwater, and even in orbital space‐by exploiting a synergy between local, deterministic deformation programming and global, stochastic entanglements. A single origami tentacle can be designed to coil with a simple tendon pull.
Alec Boron, Bokun Zheng, Ziyang Zhou, Noel Naughton, Suyi Li   +4 more
wiley   +1 more source

Advancing Selective Extraction: A Novel Approach for Scandium, Thorium, and Uranium Ion Capture

Small Science
The potential use of thorium (Th) and uranium (U) as nuclear fuels underscores the importance of developing materials for their sustainable recovery. The production of Th and U requires the separation of these elements from rare‐earth elements (REEs) as ...
Iryna Protsak, Martin Stockhausen, Aaron Brewer, Martin Owton, Thilo Hofmann, Freddy Kleitz   +5 more
doaj   +1 more source

SemanticST: A Scalable Multi‐Contextual Graph Learning Framework for Uncovering Spatial Niches and Robust Multi‐Sample Integration in Spatial Transcriptomics

Advanced Science, EarlyView.
Technical limitations often let dominant signals overshadow rare cell types and fine‐grained heterogeneity in spatial transcriptomics. SemanticST, a graph neural network using multi‐semantic graph fusion and a novel min‐cut loss, recovers these subtle patterns.
Roxana Zahedi, Ahmadreza Argha, Nona Farbehi, Ivan Bakhshayeshi, Thantrira Porntaveetus, Youqiong Ye, Nigel H. Lovell, Hamid Alinejad‐Rokny   +7 more
wiley   +1 more source

Thorium metal–organic framework crystallization for efficient recovery from rare earth element mixtures

Chemical Science
Selective crystallization of a novel thorium metal–organic framework (NU-2500) enables the efficient separation of Th( iv ) from initial mixtures with rare earth( iii ) ions.
Madeleine A. Gaidimas, Courtney S. Smoljan, Zi-Ming Ye, Charlotte L. Stern, Christos D. Malliakas, Kent O. Kirlikovali, Omar K. Farha   +6 more
openaire   +2 more sources

Sticker Valence Governs Chain Collapse and Liquid‐Liquid Phase Separation in Peptide‐Inspired Associative Polymers

Advanced Science, EarlyView.
Peptide‐inspired associative polymers with arginine‐like guanidinium stickers and lysine‐like ammonium spacers undergo chain collapse and liquid‐liquid phase separation induced by reversible sticker associations. Sticker valence and tunable association strength jointly control the phase behavior, chain conformation, and interfacial cohesion of these ...
Seung‐Hwan Oh, Jinhoon Lee, Seunghyun Lee, Raehyun Jung, Sangyeop Lee, Su‐Mi Hur, Dong Woog Lee, Soo‐Hyung Choi   +7 more
wiley   +1 more source

Precipitation of thorium as thorium hydride from thorium-magnesium solutions [PDF]

, 2013
The precipitation of thorium as thorium dihydride from thorium-magnesium solutions has been investigated over the temperature range of 665° to 810°0. It has been shown that thorium can be precipitated as thorium dihydride by equilibrating the thorium ...
Chiotti, P., Woerner, Paul
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